Title:
METHOD FOR PRODUCING COMPOSITE RESIN PARTICLES, COMPOSITE RESIN PARTICLES, MOLDED BODY USING COMPOSITE RESIN PARTICLES, INK AND COATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/171695
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing vinyl chloride composite resin particles which have improved impact resistance, flexibility, film formability, water resistance, adhesiveness and the like. The present invention also addresses the problem of providing vinyl chloride composite resin particles which enable a latex thereof to have excellent storage stability, and enable a coating film thereof to have a low water absorption rate. The above problems are solved by a method for producing composite resin particles, wherein: monomers that are mainly composed of vinyl chloride monomers are polymerized in a first stage (step 1) and monomers that are mainly composed of acrylic monomers are polymerized in a second stage (step 2) in multiple-stage emulsion polymerization; and a redox type polymerization initiator that contains a polymerization initiator and a reducing agent is used in the step 2.
Inventors:
SONODA TAKESHI (JP)
KOBAYASHI YUKIKO (JP)
KOBAYASHI YUKIKO (JP)
Application Number:
PCT/JP2023/008718
Publication Date:
September 14, 2023
Filing Date:
March 08, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08F259/04; C08F2/44; C09D11/00; C09D151/00
Domestic Patent References:
| WO1995014063A1 | 1995-05-26 | |||
| WO2012128138A1 | 2012-09-27 | |||
| WO2014123109A1 | 2014-08-14 |
Foreign References:
| JP2009227699A | 2009-10-08 | |||
| JPH11343428A | 1999-12-14 | |||
| US6316107B1 | 2001-11-13 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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